Update to @sap/cds-dk 7 (#237)

Fixes #236

Author: beckermarc

mtx/sidecar/package.json

@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@sap/cds": "^6",
+    "@sap/cds": "^7",
     "@sap/cds-mtxs": "^1",
     "@sap/xssec": "^3",
     "express": "^4",

pom.xml

@@ -21,7 +21,7 @@
 		<cloud.sdk.version>4.14.0</cloud.sdk.version>
 		<xsuaa.version>3.0.1</xsuaa.version>
 		<cf-java-logging-support.version>3.7.0</cf-java-logging-support.version>
-		<cds.install-cdsdk.version>6.8.2</cds.install-cdsdk.version>
+		<cds.install-cdsdk.version>7.0.0</cds.install-cdsdk.version>
 	</properties>
 
 	<modules>